Multi-Dimensional Arrays, Retreving data.

So im coding some simple code. but have no idea on how to actualy begin or make this code. If you could help me with coding this shit. I'v made a multidimentional array. I want to be able to controll and update the position the the array. I'm using analog buttons. I can help you on what i've written allready and explain and awnser all of you'r questions over Teamspeak/Discord/Skype etc.